Message-ID: <a5f8ae02-85f5-b98a-5900-603f189ccb85@nvidia.com>
Date:   Sun, 12 Mar 2023 17:45:11 -0700
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Subject: Re: [RFC PATCH v1 0/1] possibile regression in the mm_types
To:     Vincenzo Palazzo <vincenzopalazzodev@gmail.com>,
        linux-kernel@vger.kernel.org
Cc:     jgg@ziepe.ca, Liam.Howlett@Oracle.com, david@redhat.com,
        willy@infradead.org, akpm@linux-foundation.org,
        linux-kernel-mentees@lists.linuxfoundation.org
References: <20230312224150.425382-1-vincenzopalazzodev@gmail.com>
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From:   John Hubbard <jhubbard@nvidia.com>
In-Reply-To: <20230312224150.425382-1-vincenzopalazzodev@gmail.com>
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On 3/12/23 15:41, Vincenzo Palazzo wrote:
> While I was testing the last rc1 version on my build machine
> I noticed that I was not able to build my nvidia driver and 
> also, the vboxhost/7.0.6_OSE driver while I was building [1].
> 
> So I noticed that this change was introduced in the 6.3-rc1 
> and proposed by [2]. However, I think I can miss important 
> around this change,  there may be some motivation to 
> have the `const` constraint here, 
> and this change needs to be done in the out-of-tree driver 

Yes it does. The out of tree drivers are responsible for keeping
themselves up to date.

Note also that this is an -rc kernel. NVIDIA is generally careful 
to keep its driver building against released kernels, but with -rc
kernels we often just wait until the kernel is released, in order
to avoid too much churn. Most customers don't (and shouldn't) run
an -rc Linux kernel anyway, is why.

Anyway, no, we don't patch the upstream kernel for this kind of 
issue. But thanks for thinking about it. :)

thanks,
-- 
John Hubbard
NVIDIA